Improvement in rotary engines



Rotary Engines.

116,022, I Patentedlune 20,187AI.

PATENT GEEroE.

WARREN cAsE, oE TROY, rLLrNors.

vlln'pnovlaml-:NT |N Ro'rARv ENGINES..

To all whom it 'may conceml c Be it known th at I, WARREN CASE, of Troy, in the county of Madison and State of Illinois, have invented certain new and useful Improvements in Rotary Engines; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon.

The nature of my invention consists in the construction and arrangement of a rotary engine, as will be herein after more fully set forth.

In order. to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing which forms' a part ofthis specification, and in which- Figure l is a side view ofthe rotating wheel,

with the casing in vertical section. Fig. 2 is a plan view of the wheel, with the casing in horizontal section; and Fig. 3 is an inside view of the casing.

y A represents a cylindrical casing, within which is placed the wheel B. This wheel is, around its periphery, provided with a wide groove, a, of any suitable depth, and on each side of said groove isa narrow groove, b, as shown in Fig. 2. j The wheel is also provided with channels e e, radiating from the center at equal distances apart, said channels being a little wider than the groove a, so that valves C C, placed in these channels, will make steamtight partitions across the said groove e-' Thevalves O C slide in the channels e e, and are provided in their sides with pils z', which project through slots d d and a triiie beyond the sides of the wheel B. The pins 'i work in grooves f in the sides of the casing A.; At any desired point, preferably' the top of the casing A, is placed a block, D, of Babbitt metal or other suitable n1aterial,which block is madeso as to t for a certain distance at'its center in the groove a of thewheel B and iill the same up,'for1ning a perfect packing at this point. Toward each end the block D is inclined, as shown in Figs. 1 and 3. A suitable opening may be made in case/A to run inmore Babbitt metal in case the block D should get worn.

Around the entire inside circumference of theY Specication forming part of Letters Patent No. 116,022, dated June 20, 1871.

casing A are formed flanges or tongues h h, which fit in the grooves b b in the wheel B,

forming steam-tight joints. It is evident that the same o bject may be accomplished by putting the iianges or tongues on the wheel and the grooves in the casing. Through the casin g A, at and through each end ofthe block D, are

two ports, m and n, one of said ports on each side being the stea1n-inlet and the other the outlet. These ports are provided with stop-4 cocks, arranged in suche manner that by closing thesteam-port the air-port is simultaneously opened, and vice versa.` Either one of said ports may be the steam-inlet. Supposing the steam-inlet m on one side is opened, the air-port at .that side is closed. On the other side it -is just the reverse-the steam-port is g steam, acting on this valve, turns the wheel B' on its shaft E un-til the lnext valve passes over the steam-inlet, when the steam will act on this valve, and so on. The steam conlned between the valves is exhausted through a port situated opposite the block D, .on the other side of the casing. The wheel revolving, there is always,

more or less air between the valves after the steam is exhausted, which in some degree will retard the speed, if left therein, as each valve approaches the block D. For this reason I have supplied 'the air-ports n n. The air-port at the other end ofthe block D from where steam is admitted being open, the air is forced out through the same as the valve reaches the block; and as the valve is forced inward by v this block to pass the same the air is entirely exhausted. By shutting off the steam on one side and admitting it on the other side the wheel is reversed.

Having thus fully described my invention, what I claim-as new, and desire to secure by Letters Patent, is

1. The slidingvalves C C operatin g in the rav diating channels e e, and circumferential groove a on the wheel B,substantiall y as and for the purposes herein 'set forth. A

2. The wheel B, provided with cireumferentiul grooves a and b b, channels e e, and slots d d, all substantially as und for the purposes herein set forth.

3. The grooves I) b and tongues h h, constructed in the wheel B and casing` A, substantiu-lly :is und for the purposes herein set forth.

' 4. The combination of the casing A, Wheel B, sliding` valves G C, block D, steam-ports m m, air-ports u n, all constructed and arranged to operate substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 3d day of May,

WARREN OASE.

Witnesses:

0. H. BRIGHTWELL, E. HOWARD. 

